/*
 * Copyright 2010-2020 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.engine.test.bpmn.event.signal;

public class FileExistsMock {

    private boolean exists = false;

    private static FileExistsMock instance;

    public static synchronized FileExistsMock getInstance() {
        if (instance == null) {
            instance = new FileExistsMock();
        }
        return instance;
    }

    public boolean fileExists() {
        return this.exists;
    }

    public void touchFile() {
        this.exists = true;
    }

    public void removeFile() {
        this.exists = false;
    }
}
